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But administration critics suspect the administration will try to buy more time for negotiations, and insist that the clock cannot be extended any further.
"U.S. negotiating leverage and deal demands have diminished because President Obama has not held Iran, and Congress has not held the president, to his own deadlines," said Mark Dubowitz, executive director of the Foundation for the Defense of Democracies. "Another extension doubles down on a mistaken assumption that has plagued these negotiations, that further delays without increased leverage will improve the terms of a nuclear deal."
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